chore(deps): upgrade vitest and coverage provider to 4#1689
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vitest 4 mocks with arrow-function implementations are no longer
constructable; observer tests mocked ResizeObserver and
IntersectionObserver constructors via 'vi.fn((cb) => ({...}))' and
failed with 'is not a constructor'. Implementations extracted to
function declarations, which stay constructable and do not trip
prefer-arrow-callback.
Config needed no changes; coverage output format is unchanged.
Node >= 25 defines global localStorage/sessionStorage; without --localstorage-file they are non-functional stubs, and under vitest 4 they shadow jsdom's storage in test workers -- the storage-event tests failed with 'Cannot read properties of undefined (reading getItem)'. - vitest workers now run with --no-experimental-webstorage (vitest 4 moved execArgv from poolOptions to a top-level test option) - storage-event tests reference storage explicitly via window.localStorage / window.sessionStorage Also unblocks re-adding Node 'latest' to the CI test matrix.
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🎉 This PR is included in version 25.2.2 🎉 The release is available on: Your semantic-release bot 📦🚀 |
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Upgrades
vitestand@vitest/coverage-v83.2.4 → 4.1.10.Compat fixes:
ResizeObserver/IntersectionObserverconstructors viavi.fn((cb) => ({...}))and failed withis not a constructor(16 tests across 3 files). Implementations extracted to function declarations.localStorage/sessionStorage— non-functional stubs without--localstorage-file— and under vitest 4 they shadow jsdom's storage in test workers, failing 3useStorageValuestorage-event tests. Test workers now run with--no-experimental-webstorage(vitest 4 movedexecArgvto a top-level test option) and the tests referencewindow.localStorageexplicitly. This also unblocks re-adding Nodelatestto the CI matrix.vitest.config.tsotherwise unchanged; coverage works (98.23% statements).Rebased onto master independently of the eslint 10 PR (#1688 parked pending the oxc migration decision).
Verification: lint 0 problems (eslint 9), build clean, 527/527 tests pass, coverage runs.